[tz] Request to add entry to "Programmatic interfaces that map geographical coordinates"

[Paul Eggert]

Evan Siroky via tz wrote:
> I maintain a node.js library that looks up the timezone name at a GPS coordinate.  The project is called geo-tz:  https://www.npmjs.com/package/geo-tz  My library uses data produced from timezone-boundary-builder.  Can you please add an entry to tz-link.html for my project?

What's a good way to do that? Currently tz-link.htm says:

<li>The <a href="https://www.npmjs.com/package/tz-lookup">tz-lookup module</a>
for <a href="https://nodejs.org/en/">Node.js</a> is in the public domain.</li>

How should the relationship between tz-lookup and geo-tz be described? Also, 
what's the license for geo-tz? It is not obvious from its web page.

In looking at <https://www.npmjs.com/browse/keyword/timezone> I see several more 
Node.js time zone packages that seem relevant. Perhaps we should link to that page?